摘要
300nm以下的紫外辐射会引起人体皮肤红斑、角膜炎等问题。国标规定普通照明用卤钨灯的特定有效紫外辐射功率必须小于0·35mW/klm。本文先介绍了紫外辐射引起红斑效应的作用光谱,然后从黑体辐射的Planck公式出发,推导了卤钨灯的特定有效紫外辐射功率的表达式。计算表明,当钨丝温度高于2455K(对应色温2500K)时,普通石英玻璃卤钨灯的特定有效紫外辐射功率将超过限制值。提出了特定有效紫外辐射功率的直接和间接测量方法。
Skin erythema and photokeratitis are infected when They are exposed to ultraviolet （UV） radiation below 300nm. The specific effective radiant UV power （SERUVP） of tungsten halogen lamp for general lighting purpose is lower than 0.35mW/klm permited by Chinese National Standard. The UV radiation action spectrum of erythemal effects is introduced. The SERUVP of tungsten halogen lamp is deduced from Planck＇s Formula of black body radiation. The calculation results show the SERUVP of normal quartz tungsten halogen lamp exceeds the limiting value when the temperature of tungsten filament is larger than 2455K （corresponding colour temperature 2500K）. The direct and indirect measurement methods are discussed.
出处
《照明工程学报》
2005年第4期20-23,共4页
China Illuminating Engineering Journal
